JP2012501895A5 - - Google Patents

Claims (15)

A slat support assembly, comprising a slat support arm (21) having a plurality of bearing surfaces (28a, 28b, 29a, 29b) extending along a length, said slat support arm (21) being said slat support arm A plurality of cylindrical roller bearings (27a, 27b, 31a, 31b) that are movable to deploy from a leading edge of an aircraft wing and are attachable within the wing; Each bearing (27a, 27b, 31a, 31b) is in rolling contact with the associated bearing surface (28a, 28b, 29a, 29b ) to support and guide the slat support arm (21) during slat deployment and retraction, The axis of rotation of each bearing is parallel to the bearing surface, and the slat support assembly includes a pair of adjacent upper bearing surfaces. And, each of the upper bearing surface (29a, 29 b) and associated bearing (31a, 31b) is such that do not share a common axis, each of the upper bearing surface (29a, 29 b) on the bearing surface on the adjacent (29a, 29 b) A slat support assembly positioned at an angle to the slat support assembly. The slat support arm (21) has a pair of adjacent lower bearing surfaces (28a, 28b) , each lower bearing surface (28a, 28b) bearing associated with one lower bearing surface (28a, 28b) ( 27. A slat support assembly according to claim 1 , wherein the rotation axis of 27a, 27b) is arranged to be coaxial with the rotation axis of the bearing associated with the other lower bearing surface (28a, 28b) . The slat support arm (21) has a pair of second adjacent lower bearing surfaces (28a, 28b) , one lower bearing surface (28a, 28b) and associated bearing (27a, 27b) being an adjacent lower bearing. surface (28a, 28b) and associated bearing (27a, 27b) and so as not to share a common axis, each bearing surface of the second pair (28a, 28b), under the adjacent bearing surface (28a, 28b) The slat support assembly according to claim 1 , wherein the slat support assembly is disposed at an angle with respect to. The slat support arm (21) is curved and is rotatable about an axis corresponding to the curved axis, and at least the upper bearing surfaces (29a, 29b) have a width extending in the axial direction, each upper bearing surface from the axis of the arm (21) (29a, 29b) radial distance to varies across the width of each of the upper bearing surface (29a, 29 b), slat support assembly according to claim 1. The radial distance from the axis of the slat support arm (21) to the one upper bearing surface (29a, 29b) increases in the direction across its width, and the other upper bearing surface from the axis of the slat support arm (21). The slat support assembly according to claim 4 , wherein the distance to (29a, 29b) decreases in the same direction across its width. Each upper bearing surface (29a, 29 b) are divided by a region having a width extending in the axial direction, the distance from the axis to said region is constant in a direction across the width of the region, according to claim 5 Slat support assembly. The bearing surface also includes a pair of lower bearing surfaces (28a, 28b ) , each of the lower bearing surfaces (28a, 28b) having a width extending in the axial direction and each said lower bearing surface (28a) from the shaft. , 28b), the slat support assembly according to claim 6 , wherein the distance to each lower bearing surface (28a, 28b) is constant in the direction across it. Bearing surface also includes a lower bearing surface of the pair (28a, 28b), the distance to one of the lower bearing surface from the axis of the slat support arm (21) (28a, 28b) increases in the direction across the width The slat support assembly according to claim 6 , wherein the distance from the shaft to the other lower bearing surface (28a, 28b) decreases in the same direction across its width. The distance from the shaft of the slat support arm (21) to the one bearing surface (28a, 28b, 29a, 29b) increases in the direction across its width, and the one bearing surface (28a, 28b) in the radial direction from the shaft. , 29a, the distance to the other bearing surface remote from 29 b) decreases in the same direction across its width, slat support assembly according to claim 8. The bearing (27a, 27b, 31a, 31b) is attached to the bearing yoke (40), a yoke (40) is adapted for attachment to the wing structure of an aircraft, any one of claims 1 9 A slat support assembly according to claim 1. The bearing yoke (40) mounts the bearing in the yoke (27a, 27b, 31a, 31b) so as to make rolling contact with the frame having a hole for receiving the slat support arm and the bearing surface (28a, 28b, 29a, 29b). 11. A slat support assembly according to claim 10 , comprising means (42) . Each bearing (27a, 27b, 31a, 31b) on the one hand rotatably mounted to the shaft (44) having a cap (45) on the end, the other end of the shaft (44) that is remote from the cap (45) (46 ) Can be threaded to engage with a corresponding threaded hole in the yoke, and the yoke (40) has the threaded end (46) of the shaft (44) in the yoke (40) . 12. A slat support assembly according to claim 11 , comprising an opening (43) for receiving and supporting a cap (45) when engaged with a threaded hole (42) . A plurality of yokes (40) separated from each other at an angle about the axis of the slat support arm (21) , each yoke (40) accommodating a pair of upper bearings and a pair of lower bearings (27a, 27. The slat support assembly according to claim 10-12, wherein the slat support assembly is 27b . Including a groove (22) in the slat support arm (21) and a slat rack (23) attached to the slat support arm (21) in the groove (22) , centered on an axis for deployment and retraction of the slat cooperating with the drive pinion configured to rotate the slat track (21) as a slat support assembly according to any one of claims 1 to 13. 15. An aircraft wing comprising a slat and a slat support assembly according to claim 13 or 14 , wherein the slat support arm (21) is the yoke furthest away from the wing leading edge when the slat reaches a fully deployed position. An aircraft wing configured to remove (40) .